Heat-insulated receptacle.



L. J. ULMER.

HEAT INSULATED REGBPTAGLB.

APPLICATION FILED NOV.11,1010. 1,004,004, Patented onus, 1911.

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HEAT INSULATED RECEPTACLE.

APPLIUATION FILED Nov.11. 11o.

1,004,604. f Patented oct. s, 1911.

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LESLIE J. ULMER, OF TERRE HAUTE, INDIANA.

HEAT-INSULATED RECEPTACLE.

Specification of Letters Patent.

I atcnted Oct. 3, 1911.-

Application yIed November 11, 1910. Serial No. 591,920.

To all 'whom it 'may concern:

Be it known that I, LESLIE J. Umrnn, citizen of the United States,residing at Terre Haute, in the county of Vigo and State of Indiana,have invented certain new and useful Improvements in Heat-InsulatedReceptacles, of which the following is a specification.

rlhis invention relates to heat insulated receptacles and has for itsobject the provision of a comparatively simple and thor oughly eiiicientdeviceofthis character, the construction of which is such that ice creamand like bodies may be retained in a frozen state for an indefiniteperiod without the employment of ice or other refrigerant.

A further -object is to provide a heat insulated receptacle including anouter casing, and a double walled receptacle fitting within said casingand adapted to receive an ice cream can or similar container.

A further object is to provide the double walled receptacle with avacuum chamber having a nipple communicating therewith for attachment toa vacuum pump.

A still further object of the invention is generally to improve thisclass ot' devices so as to increase their utility, durability andefficiency.

Further objects and advantages will appear in the following description,it being understood that various changes in form, proportions and minordetails of construction may be resorted to within the scope of theappended lclaims.

For a full understanding of the invention and the merits thereof,reference is to be had to the following description andaccompanyinodrawings, in which:

2Figure 1 is a vert-ical sectional view ot' la heat insulated receptacleor cabinet constructed in accordance with my invention; Fig. 2 is adetail perspective View of the inner double walled receptacle detached;Fig. 3 is a transverse sectional View taken on the line 3-3 ot' Fig. 1;Fig. at. is a vertical sectional view illustrating a modified form ofthe invention.

Corresponding and like parts are referred to in the followingdescription and 'indicated in all the views of the drawings by the samereference characters.

The improved heat insulated receptacle forming the subject matter of thepresent invention comprises an outer casing or cabinet 5 formed of woodor other suitable material and having its upper edge inclined` orbeveled at 6 and its wall at the front of the cabinet provided with aseating recess 7 for the purpose hereinafter referred to.

lfivotally mounted at 8, is a lid or cover 9 having its upper portioncurved and its free end provided with a depending hasp 10 adapted toengage a keeper or similar fastening device 11 secured 4to the wall ofthe casing adjacent the recess 7. The lid 9 is hollow, as indicated at12, the lower edge of said lid being inclined or beveled to conform toand adapted to bear against the beveled edge (5 of the casing, thus toform an air tight jointbetween the parts when the lid is in closedposition.

Arranged within the casing 5, is a double walled receptacle 13,preferably constructed of metal and having a downwardly curved bottom111. Depending from the lower portion ot the receptacle 13 and securedin any suitable manner to the exterior wall thereof, is acircumferential bottom `or extension 15, the lowei edge of which extendsbelow 4the bottom of said double walled receptacle and is adapted torest on the bottom of the outer ca ing 5, the metal forming the upperand lov er edges of the extension 15 being bent or pressed to producespaced reinforcing beads 16.

Arranged within the double walled receptacle 13, is an ice cream can orsimilar container, indicated at 18, the inner and outer walls of thereceptacle 13 at the sides and bottom thereof being spaced apart to forman annular vacuum chamber 19 surrounding said container, as shown. Theupper end of the receptacle '13 is provided with a curved top Q0 whichforms a closure for the upper portion of the vacuum chamber 19, therebeing a cil'cuinferential rib or shoulder 2l formed on the exterior et'said receptacle at the base of the top 20. Pivotally mounted at 22 on4the top 20, is a cover 23, the lower face oi which is provided with astrip of cork or felt 24 adapted to bear against an inclined shoulder 20on the top 20' so as to prevent the entrance oi air to the cream can,the circumferential edge of the yieldable cork strip 24 being preferablyinclined or beveled to conform to the inch'- nation of the shoulder, asshown.

Depending from the bottom of the double walled receptacle 13, is aywalve25` having vacuum chamber 19 and its other end provided with a nipple 26for attachment toa vacuum pump, said valve being provided *with a fingerpicee`27, by means of which the valve may be opened and closed.Surrounding the valve 25, is a dcpendin {iangc 58, the exterior wall ofwhich is tireaded for detachable engagement with a cap or cover 29,which latter forms a housing 'for the valve, -as shown.

Iivotally mounted at 30 ons the receptacle 13 is a lid or cover 31 whichfits over the lid 23 and bears against the shoulder 21, said lid31 beingvprovided with a depending hasp 32 adapted to engage a catch or keeperrlhe catch or keeper 33 is provided'with a transverse opening tov permitthe passage of a padlock or other suitable locking device It will herebe noted that when the double walled receptacle 13 is placed in theouter casing 5, the catch or keeper 33 will enter the seating recess 7and thus' serve to center said receptacle within the outer casing andprevent movement of one relative to the other. It will also be notedthat the hinge 8 of the outer ca sin shoulder 21 of the r ouble walledreceptacle so that when the lid 9 of said casing is moved to openposition, a person may readily grasp the shoulder 21 and lift the doublewalled receptacle out of the casing.

In'operation, the cap 29 is removed and the flexible hose of a vacuumpump attached to the nipple 26 so that by opening the valve 25 andoperating the pump, air may be exhausted from the chamber 19. The cam 18containing the ice cream or other material is then inserted within thedouble walled receptacle 13 and the covers 23 and 31 swung downwardly toclosed position, after which said double walled receptacle, togetherwith the ice cream can or container, is placed in the outer casing, thehollow cover of the casagainst the top 20. Suitable handles 25 are alsopreferably secured to the covers 23 and 31, while the exterior wall ofthe casing 5 is formed with depressions constituting hand grips 26.`

In Fig. 4 of the drawings, there is illustrated a modified form of theinvention in .which the valve 25 and cap 29 are dispensed with, thevacuum being produced in any is disposed below the suitable manner, asby forming a small perforation in the-double'walled receptacle 13,

applying a vacuum pump thereto, andsub sequently filling said opening,the construc-l tion and operation of this form of the-device beingotherwise the same as that shown in `Fig. 1 of the drawings.

It willk of course be understood vthat the inner cover 23 of both formsof heat insulated receptacle orcabinet may be prowided with a vacuumchamber if found desirable or necessary. It willalsoibe understood thatthe receptacles may be made in different sizes and shapes, and that thedouble Walled receptacle 13 may be nickeled,`plated, coated or otherwisetreated, without departing fromV the spirit of the invention.

Having thus describedithe invention, what of the casing, a cover for thedouble-walled 4 receptacle and a fastening device carried by the coverof the'double-walled receptacle and r adapted to engage said keeper.

2. A device of the class described including an outer casing having aseating recess v formed in one wall thereof, a cover forming a closurefor the top of the casing, a double walled receptacle fitting within thecasing and adapted to receive a container, the inner and outer walls ofthe receptacle being' spaced apart to form an annular Vacuum chamber,means for exhausting the air between the walls of the receptacle, acover forming a closure for the upper end of the container, a keepersecured to the exterior of the double walled receptacle and adapted tofit within the seating recess of the easing,

a cover pivotally mounted on the doublewalled receptacle and fittingwithin the cover of the casing, and a hasp secured to the cover of thedouble walled receptacle and adapted to engage the keeper.

In testimony whereof, I affix my signature in presence ottwo witnesses.

LESLIE J.. ULMER. L. 5.]

Witnesses: i

FRED C. WIL'roN, ERNEST WV. CoLLis'rER.

